Have a data retention policy for the images/video captured to free disk space

Currently only the zipped files are auto deleted after they are synced to the cloud storage, but the images/videos captured are retained. These images/videos should be auto deleted as well after some period to free up the disk space.

No files or tests are named. Start by locating the existing cleanup path that deletes zipped files after cloud synchronization, then trace where captured images and videos are stored and whether a retention period is configurable. Done means captured media is automatically removed according to an agreed retention period without deleting files before synchronization.

Written by the indexing model from the issue text.